The LEDTRONICS part LENS-HL230-GT is a lens cap designed specifically for the relampable panel mount HLC310. This cylindrical lens cap has a diameter of 7/32" (5.6mm) and features a diffused green color. It provides an effective way to protect the LED light source and diffuse the emitted light, resulting in a visually pleasing and evenly illuminated display. This lens cap is perfect for applications that require a distinct and eye-catching green light output.